There is a traditional Japanese folk song called Sho Jo Ji, about a very hungry raccoon. (Presumably the untranslated version says "tanuki"). It is of interest here because in this animated version, besides continuous eating and weight gain the raccoon soft vores a baby towards the end.

This used to be on YouTube but was pulled down for obvious reasons. Even cartoon babies getting eaten is pretty questionable. Still, maybe it will be of interest to some of you, and it's hard to find these days, so here it is.

And to answer the next question, I do not know who did the animation.